Read the given statements and select the correct one.

Options

A. There are total 10 pairs of ribs in human body.
B. First seven pairs of ribs are called true ribs.
C. Ribs are attached to backbone in the front and to Sternum at the back.
D. Ribs protect the brain and the heart.

Explanation

To solve the question, we need to evaluate the given statements about ribs in the human body and determine which one is correct.

### Step-by-Step Solution:

1. **Evaluate the first statement**: "There are a total of 10 pairs of ribs in the human body."
- This statement is incorrect because humans actually have 12 pairs of ribs, not 10.

2. **Evaluate the second statement**: "The first 7 pairs of ribs are called true ribs."
- This statement is correct. The first 7 pairs of ribs are indeed referred to as true ribs because they are directly attached to the sternum.

3. **Evaluate the third statement**: "Ribs are attached to the backbone in the front."
- This statement is incorrect. Ribs are attached to the backbone (vertebral column) at the back, not the front. The front of the ribs is connected to the sternum.

4. **Evaluate the fourth statement**: "Ribs protect the brain and heart."
- This statement is incorrect. While ribs do protect vital organs, they primarily protect the heart and lungs, not the brain. The brain is protected by the skull.

5. **Conclusion**: After evaluating all statements, the only correct statement is the second one: "The first 7 pairs of ribs are called true ribs." Therefore, the correct answer is option B.

### Final Answer:
The correct statement is option B: "The first 7 pairs of ribs are called true ribs."

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